Growth and development

What happens when retinoids interact with hox genes?

What does an excess of retinoids cause?

What does a deficiency in retinoids cause?

What does shh work on?

What does shh control?

What is haloprosencephaly?

What is basal cell carcinoma?

What do the homeobox genes code for?

What is important about the arrangement of homeobox genes?

What do the homeobox genes guide?

How does the homeobox make sure certain parts develop at certain times during development?

Why is most of the work on the homeobox done in drosophilia?

What is the difference between the homeobox and hox gene?

What did dale purves suggest?

What is nerve growth factor?

What did sperry do?

What is synaptic plasticity?

What is homunculus?

Where are association centres?

Where are visual association areas?

thalamic reticular nucleus

hypothalamus

Amygdala

Frontal lobe

What are association areas involved in?

What are the action potentials in the precentral gyrus carried by and what are then involved in controlling?

What are upper motor neurons and what are the responsible for?

Decribe the two parts of the prefrontal lobe and what they are involved in?

What was prefrontal laboratory used to eliminate? What did it result in?

Describe the lateral and anterior spinothalamic pathways

What is the dorsal column/ medial-leminiscus involved in?

What two things is two point discrimination due to?

What does the BMP signalling pathway reguire?

What does SMAD do?

What inhibits BMP4?

What is the role of Shh?

The three swellings in the anterior region are precursors for what?

Explain the example of the retina in how timing is very important in development

Describe how the timing of the development of the anterior of the neural plate is crucial?

What are the two hypothesis' for committment?

What do cells inherital for cell fate?

What are retinoids derived from?

Why were nematode worms used to track cell fate?

What did they find in the nemotode worm about cell fate?

What is positional value?

Describe the positional value of the developing eye in the fruit fly

In the synthesis of the fruit fly eye what is the interaction between photoreceptors known to switch on?

What does the ectoderm form?

What does the mesoderm form?

What does the endoderm form?

What is the site of secretion of shh?

What happens if BMP is present?

What does the CNS develop from?

What is neurulation?

What did spermann show to be the order of primary germ layers required for the production of the neural plate?